Sapling
The easiest way to draw syntactic trees on the computer is with the web app Sapling.
TreeForm
To draw trees while offline, if you plan to do a lot of tree-building, or you have more complex trees, TreeForm is a great option. Note that you will need to have Java installed.
Mac users can install TreeForm by double clicking tree-form-install.pkg in the downloaded file; Windows users should unzip TreeFormWindows.zip then double click TreeForm.bat (if that doesn't work you can try double clicking TreeForm.jar).
PowerPoint
You can also create trees in PowerPoint, and import them into Word. This is a little finnicky, but if you're very familiar with PowerPoint it could be an easy option for you.
Bracket notation
Linguists sometimes use bracket notation to represent trees in a compact form. Consider the following example:
[S [NP Bob ] [VP ate ] ]
There are a number of online services that will let you input a tree in bracket notation and will pop out an image for you. Perhaps the most popular is Miles Shang's Syntax Tree Generator, shown here:
Some bracket notation converters include:- Miles Shang's Syntax Tree Generator
- RSyntaxTree
- jsSyntaxTree
- qtree (for LaTeX)
- forest (for Latex)